Reymirallesdiamaroviz
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Write the first four terms sequences an=n (n+1)/2 ​

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Qjcalibusoviz

Sequence:

An = n+1

An = (1) + 1 = 2

An = (2) + 1 = 3

An = (3) + 1 = 4

An =(4) + 1 = 5

Step-by-step explanation:

An = n

An = 1

An = 2

An = 3

An = 4